title: Tomato yellow leaf curl virus alters the host preferences of its vector Bemisia tabaci.
abstract: Bemisia tabaci, the whitefly vector of Tomato yellow leaf curl virus (TYLCV), seriously reduces tomato production and quality. Here, we report the first evidence that infection by TYLCV alters the host preferences of invasive B. tabaci B (Middle East-Minor Asia 1) and Q (Mediterranean genetic group), in which TYLCV-free B. tabaci Q preferred to settle on TYLCV-infected tomato plants over healthy ones. TYLCV-free B. tabaci B, however, preferred healthy tomato plants to TYLCV-infected plants. In contrast, TYLCV-infected B. tabaci, either B or Q, did not exhibit a preference between TYLCV-infected and TYLCV-free tomato plants. Based on gas chromatography-mass spectrometry (GCMS)analysis of plant terpene volatiles, significantly more β-myrcene, thymene, β-phellandrene, caryophyllene, (+)-4-carene, and α-humulene were released from the TYLCV-free tomato plants than from the TYLCV-infected ones. The results indicate TYLCV can alter the host preferences of its vector Bemisia tabaci B and Q.
authors.affiliation: 1] College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China [2] Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Fang
authors.forename: Xiaoguo
authors.initials: X
authors.lastname: Jiao
authors.forename: Wen
authors.initials: W
authors.lastname: Xie
authors.forename: Shaoli
authors.initials: S
authors.lastname: Wang
authors.forename: Qingjun
authors.initials: Q
authors.lastname: Wu
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Shi
authors.forename: Gong
authors.initials: G
authors.lastname: Chen
authors.forename: Qi
authors.initials: Q
authors.lastname: Su
authors.forename: Xin
authors.initials: X
authors.lastname: Yang
authors.forename: Huipeng
authors.initials: H
authors.lastname: Pan
authors.forename: Youjun
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D000818:Animals; D053839:Begomovirus / Q000502:physiology*; D006430:Hemiptera / Q000821:virology*; D054884:Host-Pathogen Interactions; D007303:Insect Vectors / Q000821:virology*; D018551:Solanum lycopersicum / Q000378:metabolism / Q000469:parasitology / Q000821:virology*; D010641:Phenotype; D010935:Plant Diseases / Q000821:virology; D019562:Viral Load; D055549:Volatile Organic Compounds / Q000737:chemistry / Q000378:metabolism
chemical_list: D055549:Volatile Organic Compounds